Airtac Adjustable Cylinder SAIJ32 SAIJ32BX290-40
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX290-40 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 290mm stroke, G1/8 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ32 mm
- Stroke290 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX290-40
The AirTAC SAIJ32X290-40 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the effective travel window between 250 and 290 mm without adding external stops. Delivering 402 N of push force at 0.5 MPa, it suits lighter-duty positioning tasks. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch placement.
This configuration uses a SUS304 stainless steel rod for corrosion resistance and PT tapered port threads. The 12 mm rod and M10x1.25 thread provide a robust interface, though the 290 mm stroke length means an external guide is recommended to manage side loading. The rear adjuster acts purely as a travel stop and does not hold the load without live air pressure.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX290-40 Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX290-40 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 290 mm |
| Acting type | Double acting |
| Port size | G1/8 |
| Rod thread | M10×1.25 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Adjustable, 27 mm |
| Max stroke | Up to 1000 mm |
Specifications follow the official AirTAC SAI series datasheet and ISO 15552 dimensions. Confirm against the product label before installation. Port options: G (BSPP) / NPT.
Theoretical Output Force (Ø32mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 346 N |
| 0.7 MPa | 563 N | — |
| Max (@1.0 MPa) | 82 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac Adjustable Cylinder SAIJ32 SAIJ32BX290-40
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×290 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Related SAI-family variants: SAID (double rod), SAIJ (adjustable stroke), SAIL (with lock), SAIF (with valve), BSAI (enclasp / clamp-lock), and SAI-S with built-in magnet. Rod material: carbon steel (blank) / SUS420J2 (A) / SUS304 (B); seals: TPU (blank) / Viton H / NBR N.
Where the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX290-40 Is Used
Machine Changeover
Dial in the 250-290 mm travel window during product size transitions to set new end positions without physically swapping cylinders.
Variable End Stops
Use the 40 mm rear adjustment screw to fine-tune the retract position precisely during machine commissioning.
Light Assembly Positioning
Leverage the 402 N push force and SUS304 rod for controlled movement in lighter-duty stainless-compatible environments.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX290-40 the Right Cylinder?
Choose this 32 mm bore when you need approximately 402 N of push force at 0.5 MPa and a commissioning-friendly end-position adjustment. If your application requires greater thrust, stepping up to the 40 mm bore yields 628 N. The SAIJ design is selected over a fixed-stroke SAI when product changeovers demand variable end-stops, letting you dial in the exact 250-290 mm travel window on the fly.
As a dimensionally interchangeable ISO 15552 cylinder, replacement requires matching the 32 mm bore, 290 mm stroke, 40 mm adjustment range, PT G1/8 port, and the standard mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2). Note that this plain SAIJ lacks a magnet; for position sensing you would need an -S variant fitted with AirTAC CMSE reed or DMSE electronic sensors. Because the stroke is over 300 mm, ensure an external guide supports the load to prevent rod bending.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT/NPT/G)
- ✓ Magnet (-S) for sensors?
- ✓ Side load — consider a guided cylinder
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Adjust end cushion screws for smooth stops.
- check Use correct mounting accessory (FA/FB/CA/CB/LB/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX290-40 FAQ
At 0.5 MPa, this 32 mm bore cylinder provides 402 N of push force and 345 N of pull force. It can reach a maximum push force of 724 N at 0.9 MPa.
The rear adjuster screw lets you shorten the 290 mm nominal stroke by up to 40 mm, creating a usable travel window of 250 to 290 mm. It functions as a physical stop and does not lock the load without continuous air pressure.
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